Get Cooperative Device-to-Device Communication in Cognitive PDF

By Peng Li, Song Guo

ISBN-10: 331912594X

ISBN-13: 9783319125947

ISBN-10: 3319125958

ISBN-13: 9783319125954

This short examines present examine on cooperative device-to-device (D2D) verbal exchange as an better offloading know-how to enhance the functionality of cognitive radio mobile networks. via supplying an in depth evaluation of modern advances in D2D communique, the authors exhibit that the standard of D2D hyperlinks considerably impacts offloading functionality in mobile networks, which motivates the layout of cooperative D2D conversation. After offering the structure of cooperative D2D verbal exchange, the demanding situations of means maximization and effort potency are addressed by means of optimizing relay task, strength regulate and source allocation. in addition, cooperative D2D conversation is more desirable via community coding know-how, after which is prolonged for broadcast classes. besides unique challenge formula and hardness research, quickly algorithms are constructed through exploiting problem-specific features such that they are often utilized in practice.

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Additional info for Cooperative Device-to-Device Communication in Cognitive Radio Cellular Networks

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We set the background noise power at each node to 10−10 unit. In this example network, it is easy to see that although r6 is the best relay candidate for pair s8 , d8 , it cannot assist the transmission since they are not allowed to work on the same channel B(r9 ) = {b3 } and B(s8 ) ∩ B d8 = b1 . 1. 7373, by employing relay r7 for D2D pair s3 , d3 under channel b1 . This pair also shares channel b2 with pairs s5 , d5 and s8 , d8 . 2. 2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Fig. 05 3 4 5 6 Number of channels Fig.

This is because more pairs may work over the same channel when the available channels are less such that the coding probability increases. We then study the effect of the number of D2D pairs on the max-min rate. Under fixed ten relays and five available channels in the networks, as shown in Fig. 8, the max-min rate decreases as the pair number increases for all the transmission schemes. The performance of RC and RCNC is obviously higher than that of direct transmission and the coding gain is larger in the networks with more D2D pairs.

X. Deng, A. Haimovich, Power allocation for cooperative relaying in wireless networks. IEEE Commun. Lett. 9(11), 994–996 (2005) 8. W. Fang, F. Liu, F. Yang, L. Shu, S. Nishio, Energy-efficient cooperative communication for data transmission in wireless sensor networks. IEEE Trans. Consumer Electron. 56(4), 2185–2192 (2010) 9. M. Felegyhazi, M. Cagalj, S. -P. Hubaux, Non-cooperative multi-radio channel allocation in wireless networks, in Proceeding IEEE INFOCOM, pp. 1442–1450, May 2007 10. L. Gao, X.

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Cooperative Device-to-Device Communication in Cognitive Radio Cellular Networks by Peng Li, Song Guo

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